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Position: Home > Articles > Study on the Composition and Spatial Distribution of Humus in Ancient Paddy Soils of Liyang Plain Humic Acid 2015 (2) 9-14+38

澧阳平原埋藏古水稻土腐殖质组成及空间分布特征研究

作  者：
郭子川;周卫军;刘沛;顾海滨;谢天洋;谭洁;肖彦资
单  位：
湖南文物考古研究所;湖南农业大学资源环境学院
关键词：
古水稻土;有机碳;胡敏酸;富里酸;胡敏素;胡富比
摘  要：
为了探明埋藏古水稻土的腐殖质组分特征以及空间分布规律,采用野外采样和室内分析相结合的方法,以澧阳平原杉龙岗遗址古水稻土为材料,选取3处剖面(PA、PB、PC),比较分析了各剖面中现代耕作水稻土层和埋藏古水稻土层的有机碳、胡敏酸(HA)、富里酸(FA)和胡敏素(HU)等含量变化情况。结果表明:杉龙岗遗址古水稻土腐殖质各组分含量为胡敏素>胡敏酸>富里酸;随着土层深度的增加,在现代耕作水稻土中各组分含量表现为波动性降低趋势,而在埋藏古水稻土中呈现微幅增加趋势;现代耕作水稻土中耕作层腐殖质累积速度较快,从上到下的迁移量相对较大,而埋藏古水稻土中各形态腐殖质含量变化相对较小,并且朝着更加稳定的趋势变化。
译  名：
Study on the Composition and Spatial Distribution of Humus in Ancient Paddy Soils of Liyang Plain
作  者：
Guo Zichuan;Zhou Weijun;Liu Pei;Gu Haibin;Xie Tianyang;Tan Jie;Xiao Yanzi;College of Resources and Environment, Hunan Agricultural University;Hunan Provincial Institute of Cultural Relics and Archaeology;
关键词：
ancient paddy soil;;organic carbon;;humic acid;;fulvic acid;;humin;;HA/FA
摘  要：
For fully understanding the composition and spatial distribution characters of Humus form in buried ancient paddy soil, field sampling and laboratory analysis were used to study ancient paddy soil in Sanlonggang village, Liyang plain. Three profiles were select to determine the content change of organic carbon, humic acid(HA), fulvic acid(FA) and humin(HU). Contrastive analysis was conducted on humus components changes in modern farming paddy soil and buried ancient paddy soil. The results showed that the humus composition of ancient paddy soils in Sanlonggang village site was humin > humic acid > fulvic acid. With depth increasing, the characteristic of three compositions was that volatility was reducing in modern farming paddy soil, but the trend was slightly increasing in buried ancient paddy soil. That showed the accumulation of surface humus was faster in modern farming paddy soil, but from top to bottom, the downward migration quantity was relatively large; while the change of humus content was relatively small and the trend was more stable in buried ancient paddy.

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